TY  - JOUR
AU  - V. S. Belonosov
TI  - Instability indices of unbounded operators
JO  - Doklady Akademii Nauk
PY  - 1983
SP  - 11
EP  - 14
VL  - 273
IS  - 1
PB  - mathdoc
UR  - http://geodesic.mathdoc.fr/item/DAN_1983_273_1_a0/
LA  - ru
ID  - DAN_1983_273_1_a0
ER  -